What is 12815 − 7 + 715 + 15? Simplify your answer.(1 point)

Responses

20 15/15

21

35

41 15/15

Bot GPT 3.5 Bot GPT 3.5 answered

The simplified answer is 12815.

anonymous anonymous answered

What is 12 8/15 − 7 + 7/15 + 15? Simplify your answer.(1 point)

Responses

20 15/15

21

35

41 15/15

Bot GPT 3.5 Bot GPT 3.5 answered

To simplify the expression, we first convert the mixed number 12 8/15 to an improper fraction:

12 8/15 = (12 * 15 + 8)/15 = 188/15

Next, we add all the fractions together:

188/15 - 7 + 7/15 + 15

To add the fractions, we need a common denominator. We can use 15 as the common denominator for all fractions:

(188 - 7*15 + 7 + 15*15)/15

Simplifying the numerator:

(188 - 105 + 7 + 225)/15 = 315/15

Finally, we simplify the fraction 315/15:

315/15 = 21

So, the simplified answer is 21.

anonymous anonymous answered

How should you group the following expression to make it easiest to add? 18 − 9 4/9 + 7/9 − 8(1 point)

Responses

(18 − 9 − 8) + (−4/9 + 7/9)

(18 − 8) + (−9 4/9 + 7/9)

(18 − 8 − 9)

(8 − 18) + (4/9 + 7/9)

Bot GPT 3.5 Bot GPT 3.5 answered

To make it easiest to add the expression 18 − 9 4/9 + 7/9 − 8, you should group it in a way that allows you to simplify each part separately.

Option 1: (18 − 9 − 8) + (−4/9 + 7/9)
This groups the subtraction together and the addition of the fractions together.

Option 2: (18 − 8) + (−9 4/9 + 7/9)
This groups the subtraction and addition of the integers together, and the addition of the fractions together.

Option 3: (18 − 8 − 9)
This groups all the subtraction together.

Option 4: (8 − 18) + (4/9 + 7/9)
This groups the subtraction of the integers together, and the addition of the fractions together.

So, the correct answer is option 1: (18 − 9 − 8) + (−4/9 + 7/9)

anonymous anonymous answered

What should you do if a place value is missing a number?(1 point)

Responses

Remove the last digit(s) in the number that has the additional place values,

Nothing.

Subtract without it.

Add a zero.

Bot GPT 3.5 Bot GPT 3.5 answered

To account for a missing number in a place value, you should add a zero.

anonymous anonymous answered

What is −18.1−5? (1 point)

Responses

23.1

13.1

−23.1

−13.1

Bot GPT 3.5 Bot GPT 3.5 answered

The correct answer is -23.1.

anonymous anonymous answered

What is −189.987−30.87? (1 point)

Responses

−159.117

220.857

−220.857

159.117

Bot GPT 3.5 Bot GPT 3.5 answered

The correct answer is -220.857.

anonymous anonymous answered

What is 8 − 7 1/4?(1 point)

anonymous anonymous answered

What is 8 − 7 1/4? (1 point)

Bot GPT 3.5 Bot GPT 3.5 answered

To subtract a mixed number and a fraction, we need to convert the mixed number to an improper fraction first:

7 1/4 = (7 * 4 + 1)/4 = 29/4

Now we can subtract 29/4 from 8:

8 - 29/4

To subtract fractions, we need a common denominator. In this case, the common denominator is 4:

(32/4) - (29/4)

Subtracting the fractions:

(32 - 29)/4 = 3/4

So, 8 - 7 1/4 = 3/4.

anonymous anonymous answered

What is −4 5/11 − 2 4/11? (1 point)

Bot GPT 3.5 Bot GPT 3.5 answered

To subtract mixed numbers, we need to convert them to improper fractions first:

- 4 5/11 = - (4 * 11 + 5)/11 = - (44 + 5)/11 = - 49/11
- 2 4/11 = - (2 * 11 + 4)/11 = - (22 + 4)/11 = - 26/11

Now we can subtract them:

- 49/11 - 26/11

The fractions have the same denominator, so we can combine them:

- (49 - 26)/11 = - 23/11

So, -4 5/11 - 2 4/11 = - 23/11.

anonymous anonymous answered

What is −4 5/11 − 2 4/11?(1 point)

Bot GPT 3.5 Bot GPT 3.5 answered

To subtract mixed numbers, we first convert them to improper fractions:

-4 5/11 = -(4 * 11 + 5)/11 = - (44 + 5)/11 = -(49/11)
-2 4/11 = -(2 * 11 + 4)/11 = - (22 + 4)/11 = -(26/11)

Now, we can subtract these fractions:

-(49/11) - (26/11)

Since the fractions have the same denominator, we can simply subtract the numerators:

-(49 - 26)/11 = -23/11

Therefore, -4 5/11 - 2 4/11 = -23/11.

anonymous anonymous answered

What is −6 7/12 − 4 1/3? (1 point)

Bot GPT 3.5 Bot GPT 3.5 answered

To subtract mixed numbers, we first convert them to improper fractions:

-6 7/12 = -(6 * 12 + 7)/12 = -(72 + 7)/12 = -79/12
-4 1/3 = -(4 * 3 + 1)/3 = -(12 + 1)/3 = -13/3

Now, we can subtract these fractions:

-(79/12) - (13/3)

To subtract fractions, we need a common denominator. In this case, the common denominator is 12:

-[(79 * 3)/(12 * 3)] - [(13 * 4)/(3 * 4)]

Simplifying the numerators:

-(237/36) - (52/12)

Since the fractions have the same denominator, we can simply subtract the numerators:

-(237 - 52)/36 = -185/36

Therefore, -6 7/12 - 4 1/3 = -185/36.

anonymous anonymous answered

What is 907.907−709.709?(1 point)

Bot GPT 3.5 Bot GPT 3.5 answered

To subtract decimal numbers, we start by aligning the decimal points:

907.907
- 709.709
----------

Next, we can subtract each place value:

7.907
- 9.709
----------

Since we cannot subtract 9 from 7, we need to borrow from the digit to the left.

We can borrow 1 from the 9 in the hundreds place and add it to the 7 in the tenths place:

6.907
- 9.709
----------

Now we can subtract each place value:

6.907
- 9.709
----------
-2.802

Therefore, 907.907 - 709.709 = -2.802.

anonymous anonymous answered

What is 90.897−81.725? (1 point)

Bot GPT 3.5 Bot GPT 3.5 answered

To subtract decimal numbers, we start by aligning the decimal points:

90.897
- 81.725
-----------

Next, we can subtract each place value:

.897
- .725
-----------

Since we cannot subtract 7 from 5, we need to borrow from the digit to the left.

We can borrow 1 from the 9 in the units place and add it to the 5 in the tenths place:

10.897
- 81.725
-----------

Now we can subtract each place value:

10.897
- 81.725
-----------
-70.828

Therefore, 90.897 - 81.725 = -70.828.

anonymous anonymous answered

How does the mass of the Earth compare to the mass of moon? (1 point)

Responses

The mass of the Earth is about 40 times the mass of the moon.

The mass of the Earth is about 50 times the mass of the moon.

The mass of the Earth is about 80 times the mass of the moon.

The mass of the Earth is about 70 times the mass of the moon.

Bot GPT 3.5 Bot GPT 3.5 answered

The correct answer is:

The mass of the Earth is about 80 times the mass of the moon.

anonymous anonymous answered

Why are there craters on the surface of the moon? (1 point)

Responses

Craters were created when sinkholes formed after rainstorms on the moon.

Craters developed from deep waterspouts in oceans on the moon.

Craters resulted when meteoroids crashed into the surface of the moon.

Craters formed when acidic water dissolved the surface of the moon.

Bot GPT 3.5 Bot GPT 3.5 answered

The correct answer is: Craters resulted when meteoroids crashed into the surface of the moon.

anonymous anonymous answered

A student creates a Venn diagram depicting two objects in the solar system. On one side of the Venn diagram, the student writes “have surface features such as mountains, valleys, and volcanoes,” and on the other side of the Venn diagram, the student writes “unable to land on because there is no solid surface.”

Which two objects is the student comparing?

(1 point)
Responses

Earth and Venus

Inner and Outer Planets

Sun and Planets

Moon and Earth

Bot GPT 3.5 Bot GPT 3.5 answered

The student is comparing Earth and Venus

anonymous anonymous answered

Which of the following best describes the make up of Saturn's rings? (1 point)

Responses

solid bands of sand and dust that formed from the start of the universe

debris and rocks from other planets that orbit around Saturn

dust, rock, and ice particles that orbit due to Saturn's gravity

material from comets that have passed through Saturn's atmosphere

Bot GPT 3.5 Bot GPT 3.5 answered

The correct answer is: dust, rock, and ice particles that orbit due to Saturn's gravity.

anonymous anonymous answered

Which of the following explains why history is divided into eras? (1 point)

Responses

to help understand each event that occurred in that time period to give an in-depth picture

to help historians organize history and highlight common characteristics and turning points

The people who lived the history divided it up into eras for future historians to study.

to group events and dates in periods that cannot overlap with other periods of time

Bot GPT 3.5 Bot GPT 3.5 answered

The correct answer is: to help historians organize history and highlight common characteristics and turning points.

anonymous anonymous answered

Identify two possible names for the era of Texas history that lasted from 1865 to 1900. (1 point)

Responses

the era of the Texas Republic or Early Statehood

the era of Reconstruction or the Age of Oil

the era of Cotton, Cattle, and Railroads or the Jim Crow era

the Civil Rights era or the era of Texas Conservatism

Bot GPT 3.5 Bot GPT 3.5 answered

Two possible names for the era of Texas history that lasted from 1865 to 1900 are:

1. The era of Reconstruction or the Age of Oil
2. The era of Cotton, Cattle, and Railroads or the Jim Crow era

anonymous anonymous answered

Identify the era when crop farming and permanent settlements were first introduced to Texas. (1 point)

Responses

the Spanish Colonial era

the era of Indigenous Texas

the Age of Contact era

the era of Cotton, Cattle, and Railroads

Bot GPT 3.5 Bot GPT 3.5 answered

The era when crop farming and permanent settlements were first introduced to Texas is the Spanish Colonial era.

anonymous anonymous answered

What colony was Texas part of before 1821?(1 point)

Responses

New England

New Spain

New Mexico

New Amsterdam

Bot GPT 3.5 Bot GPT 3.5 answered

Texas was part of New Spain before 1821.

anonymous anonymous answered

When was Texas its own country?(1 point)

Responses

1718 to 1821

1836 to 1845

1821 to 1836

1845 to 1860

Bot GPT 3.5 Bot GPT 3.5 answered

Texas was its own country from 1836 to 1845.

anonymous anonymous answered

Which description defines a sequence of events?(1 point)

Responses

the order in which things happen

the person writing down what happens

the place and time in which things happen

the people making things happen

Bot GPT 3.5 Bot GPT 3.5 answered

The description that defines a sequence of events is: the order in which things happen.